title: Ultra-short plasmonic splitters and waveguide cross-over based on coupled surface plasmon slot waveguides.
abstract: Composite metal-dielectric-metal (MDM) surface plasmon polariton (SPP) structures are first proposed to realize the ultra-short optical splitters with simplified designs. The operation mechanism is based on the contra-directional coupling achieved in composite plasmonic slot waveguides. In certain cases, the switching function can also be realized. It is further shown that based on the same physical mechanism multi-dielectric-core composite MDM structures could serve as a novel plasmonic waveguide crossover component with low cross talk and high throughput.
authors.affiliation: Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China.
authors.forename: Yi-Jiao
authors.initials: YJ
authors.lastname: Fang
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Chen
authors.forename: Ling
authors.initials: L
authors.lastname: Chen
authors.forename: Kai-Ting
authors.initials: KT
authors.lastname: He
authors.forename: Zhen-Lv
authors.initials: ZL
authors.lastname: Han
authors.forename: Zhen-Lin
authors.initials: ZL
authors.lastname: Wang
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D008904:Miniaturization; D012031:Refractometry / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*